Results 111 to 120 of about 12,103,103 (313)
Advanced Physics Research, EarlyView.Thermoelectric conductivity decreases nonlinearly with increasing temperature for all investigated band‐gap values. Higher energy splitting yields lower conductivity, while smaller gaps maintain superior carrier transport. Peak response occurs at low temperature, followed by gradual saturation at elevated temperatures.
D. Sekyi‐Arthur, B. Afoakwa
wiley +1 more source
Polynomial approximations to Bessel functions [PDF]
, 2003 Bessel functions appear in numerous physical problems, and play an important role in many electromagnetic scattering problems. There is no closed form expression for Bessel functions so that approximations suitable for numerical evaluation are ...
Eads, J.L. +3 more
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The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory
Astronomische Nachrichten, EarlyView.ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth +20 more
wiley +1 more source
Integrable operators and squares of Hankel operators. [PDF]
, 2007 Integrable operators arise in random matrix teory, where they describe the asymptotic distributions of large self-adjoint random matrices from the generalized unitary ensembles.
Blower, G., Blower, Gordon
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On the Evaluation of Bessel Functions
Applied and Computational Harmonic Analysis, 1993 The author presents an algorithm for the evaluation of Bessel functions \(J_ \nu(x)\), \(Y_ \nu(x)\) and \(H_ \nu^{(j)}(x)\) \((j=1,2)\) of arbitrary positive orders and arguments. This algorithm consists of two parts: One of them combines the evaluation of the function \(H_ \nu^{(1)}(x)\) via Taylor expansions and via numerical computation of the ...
openaire +2 more sources
THE LEGENDRE POLYNOMIALS AS A BASIS FOR BESSEL FUNCTIONS
, 2016 : By using the concepts and the formalism of the Monomiality Principle, we introduce a generalization of Bessel functions. The starting point is represented by Legendre polynomials, presented as particular case of generalized Laguerre polynomials of two ...
C. Cesarano, P. Ricci
semanticscholar +1 more source
Hidden Markov graphical models with state‐dependent generalized hyperbolic distributions
Canadian Journal of Statistics, EarlyView.Abstract In this article, we develop a novel hidden Markov graphical model to investigate time‐varying interconnectedness between different financial markets. To identify conditional correlation structures under varying market conditions and accommodate shape features embedded in financial time series, we rely upon the generalized hyperbolic family of ...
Beatrice Foroni +2 more
wiley +1 more source
Inequalities involving Bessel and modified Bessel functions [PDF]
, 1990 Some inequalities for the ratios Jv + 1(x)Jv(x) and Iv + 1(x)Iv(x) of Bessel and modified Bessel functions of the first kind and order v > −1 are given. The inequalities are found easily from a different definition of the ratios and improve many results ...
Siafarikas, P.D., Ifantis, E.K.
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A partial envelope approach for modelling multivariate spatial‐temporal data
Canadian Journal of Statistics, EarlyView.Abstract In the new era of big data, modelling multivariate spatial‐temporal data is a challenging task due to both the high dimensionality of the features and complex associations among the responses across different locations and time points.
Reisa Widjaja +3 more
wiley +1 more source
Generalized Bessel functions and Kapteyn series [PDF]
, 1998 Kapteyn series are introduced for generalized Bessel functions in full analogy with ordinary Bessel functions. Apart from the relevance that Kapteyn series have in astronomical problems and in electromagnetic radiation theory, interest in this type of ...
Torre, A. +3 more
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